Linked Life Data

12652046

Source:http://linkedlifedata.com/resource/pubmed/id/12652046

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2003-3-24
pubmed:abstractText
The aim of the present study was to evaluate the effect of experimental, fluoridated carbamide peroxide gels on formation of erosively induced demineralization of enamel. Seventy-five bovine enamel specimens were polished for microhardness determination and evenly distributed among 5 groups (A-E). The specimens were treated with 10% carbamide peroxide gel (8 h) and subjected twice to remineralization for 2 h in artificial saliva and demineralisation for 90 s in 1% citric acid, pH 2.2. The cycles of treatment with carbamide peroxide and twofold re- and demineralization were repeated three times. The carbamide peroxide gels were different in pH and fluoride content. Gel A (pH 7.0) and gel B (pH 5.7) were fluoridated (0.5% F), gel C (pH 7.0) and gel D (pH 5.7) were not fluoridated. In control group E the samples were not treated with a gel, but stored in 100% humidity for 8 h instead. Knoop microhardness of the specimens was assessed directly after polishing, and after each carbamide peroxide treatment and demineralization. All specimens showed a loss of microhardness at the end of the experiment. After 3 days, the controls revealed a significantly lower hardness loss compared to the specimens treated with the carbamide peroxide gels. Surface softening was significantly lower for the specimens of group A compared to the remaining groups (B-D), which were not significantly different among each other. It is concluded that treatment with either fluoridated or unfluoridated carbamide peroxide gels, at either neutral and acidic pH, renders enamel more susceptible to demineralization. Use of a fluoridated neutral gel decreases the degree of surface softening compared to the other gels investigated.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
D
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0008-6568
pubmed:author
pubmed:copyrightInfo
Copyright 2003 S. Karger AG, Basel
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
93-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:12652046-Analysis of Variance, pubmed-meshheading:12652046-Animals, pubmed-meshheading:12652046-Cariostatic Agents, pubmed-meshheading:12652046-Cattle, pubmed-meshheading:12652046-Citric Acid, pubmed-meshheading:12652046-Dental Enamel, pubmed-meshheading:12652046-Dental Enamel Solubility, pubmed-meshheading:12652046-Drug Combinations, pubmed-meshheading:12652046-Fluorides, pubmed-meshheading:12652046-Gels, pubmed-meshheading:12652046-Hardness, pubmed-meshheading:12652046-Humidity, pubmed-meshheading:12652046-Hydrogen-Ion Concentration, pubmed-meshheading:12652046-Oxidants, pubmed-meshheading:12652046-Peroxides, pubmed-meshheading:12652046-Saliva, Artificial, pubmed-meshheading:12652046-Temperature, pubmed-meshheading:12652046-Time Factors, pubmed-meshheading:12652046-Tooth Demineralization, pubmed-meshheading:12652046-Tooth Erosion, pubmed-meshheading:12652046-Tooth Remineralization, pubmed-meshheading:12652046-Urea
pubmed:articleTitle
Susceptibility of enamel surfaces to demineralization after application of fluoridated carbamide peroxide gels.
pubmed:affiliation
Department of Operative Dentistry, Preventive Dentistry and Periodontology, Georg August University Göttingen, Göttingen, Germany. thomas.attin@med.uni-goettingen.de
pubmed:publicationType
Journal Article, Comparative Study